The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2013
Filed:
Oct. 29, 2009
Applicants:
Douglas R. Verner, Sterling Heights, MI (US);
Jonathan T. Shibata, Whitmore Lake, MI (US);
Allen B. Rayl, Waterford, MI (US);
Halim G Santoso, Novi, MI (US);
Kenneth J. Buslepp, Brighton, MI (US);
Inventors:
Douglas R. Verner, Sterling Heights, MI (US);
Jonathan T. Shibata, Whitmore Lake, MI (US);
Allen B. Rayl, Waterford, MI (US);
Halim G Santoso, Novi, MI (US);
Kenneth J. Buslepp, Brighton, MI (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/22 (2006.01); F02D 41/00 (2006.01); F01N 3/10 (2006.01); F02M 57/04 (2006.01); F02M 57/06 (2006.01); F02B 3/00 (2006.01); F02B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method for controlling engine operation includes a timer module that determines a time period from when a catalyst light-off mode is entered to when an oxygen sensor signal reaches an oxygen sensor threshold and a comparison module that generates an error signal and determines when the time period is above a time threshold.